SnorkelForecast.com

Fernando de Noronha Snorkel Report Today

Brazil · Updated Tue 04:14 (-02) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Wed 14:30

Fernando de Noronha looks marginal today. The least-bad daylight window is around Thu 16:00, but waves is limiting the forecast.

Score: 3.5/10

Best time: Thu 16:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Wed 15:00 (Fair). Peak afternoon wind is about 7.0 m/s.

Email me when it is good

Sunrise

06:18

Sunset

18:14

Water

27.4°C

Max air

26.5°C

Sky

Clear

22% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Thu 18:00 — Fair (0.35) · still limited by waves, wind
  • Thu 17:00 — Fair (0.35) · still limited by waves, wind
  • Wed 17:00 — Fair (0.35) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (35 hours)
  • Wind (35 hours)
  • Tide/current (35 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Next early morning high tide: Thu 02:00

Thu 02:00, Thu 14:00

Nearby alternatives in Brazil

Arraial do Cabo

2363 km away

❌ Poor

Advanced forecast data

Viewing historical data

Thu 16:00 – Sun 16:00 (-02)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.28 around Thu 14:00; 0 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

0/24 sampled hours stay at or below 0.36m (range 2.2m to 2.66m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 24.6 to 34.1m/s).

Tides range from -0.8m to 0.94m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

  • Wave height (35%): best below 0.36m, then decreases as it rises.
  • Wind speed (25%): best below 5.4m/s, lower is better.
  • Sea surface temperature (15%): best within 20.6°C to 30.4°C.
  • Tide and currents (15%): best around slack/high-tide windows.
  • Daylight (10%): visibility and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Thu 16:00 2.66 · high 29.00 · high 28.10 · good poor
Thu 17:00 2.62 · high 28.50 · high 28.10 · good poor
Thu 18:00 2.58 · high 28.40 · high 28.10 · good poor
Thu 19:00 2.56 · high 28.40 · high 28.10 · good poor
Thu 20:00 2.52 · high 28.50 · high 28.10 · good poor
Thu 21:00 2.50 · high 28.70 · high 28.10 · good poor
Thu 22:00 2.46 · high 28.80 · high 28.10 · good poor
Thu 23:00 2.44 · high 28.80 · high 28.00 · good poor
Fri 00:00 2.40 · high 28.80 · high 28.00 · good poor
Fri 01:00 2.38 · high 27.90 · high 28.00 · good poor
Fri 02:00 2.34 · high 26.90 · high 28.00 · good poor
Fri 03:00 2.32 · high 26.00 · high 28.00 · good poor
Fri 04:00 2.30 · high 26.10 · high 28.00 · good poor
Fri 05:00 2.26 · high 24.60 · high 28.00 · good poor
Fri 06:00 2.24 · high 24.80 · high 28.00 · good poor
Fri 07:00 2.22 · high 26.10 · high 28.00 · good poor
Fri 08:00 2.22 · high 24.90 · high 28.00 · good poor
Fri 09:00 2.20 · high 25.50 · high 28.00 · good poor
Fri 10:00 2.20 · high 26.20 · high 28.00 · good poor
Fri 11:00 2.48 · high 32.00 · high 28.00 · good poor
Fri 12:00 2.48 · high 34.10 · high 28.00 · good poor
Fri 13:00 2.48 · high 32.80 · high 28.00 · good poor
Fri 14:00 2.50 · high 31.00 · high 28.00 · good poor
Fri 15:00 2.50 · high 28.20 · high 28.00 · good poor
Fri 16:00 2.50 · high 28.80 · high 28.10 · good poor
Fri 17:00 2.50 · high 31.50 · high 28.10 · good poor
Fri 18:00 2.50 · high 29.30 · high 28.10 · good poor
Fri 19:00 2.50 · high 30.00 · high 28.10 · good poor
Fri 20:00 2.50 · high 30.60 · high 28.10 · good poor
Fri 21:00 2.50 · high 30.90 · high 28.00 · good poor
Fri 22:00 2.50 · high 29.10 · high 28.00 · good poor
Fri 23:00 2.48 · high 30.00 · high 28.00 · good poor
Sat 00:00 2.48 · high 31.00 · high 28.00 · good poor
Sat 01:00 2.48 · high 29.70 · high 28.00 · good poor
Sat 02:00 2.46 · high 29.10 · high 28.00 · good poor
Sat 03:00 2.46 · high 26.50 · high 28.00 · good poor
Sat 04:00 2.44 · high 28.10 · high 28.00 · good poor
Sat 05:00 2.42 · high 27.90 · high 28.00 · good poor
Sat 06:00 2.40 · high 30.50 · high 28.00 · good poor
Sat 07:00 2.38 · high 31.00 · high 28.00 · good poor
Sat 08:00 2.38 · high 26.40 · high 28.00 · good poor
Sat 09:00 2.36 · high 30.80 · high 28.00 · good poor
Sat 10:00 2.36 · high 32.20 · high 28.00 · good poor
Sat 11:00 2.36 · high 33.70 · high 28.00 · good poor
Sat 12:00 2.36 · high 34.90 · high 28.00 · good poor
Sat 13:00 2.36 · high 35.40 · high 28.00 · good poor
Sat 14:00 2.34 · high 33.80 · high 28.00 · good poor
Sat 15:00 2.34 · high 32.90 · high 28.00 · good poor
Sat 16:00 2.32 · high 33.00 · high 28.00 · good poor
Sat 17:00 2.30 · high 32.10 · high 28.00 · good poor
Sat 18:00 2.28 · high 29.40 · high 28.00 · good poor
Sat 19:00 2.28 · high 30.70 · high 28.00 · good poor
Sat 20:00 2.26 · high 30.10 · high 28.00 · good poor
Sat 21:00 2.26 · high 30.30 · high 28.00 · good poor
Sat 22:00 2.26 · high 30.70 · high 28.00 · good poor
Sat 23:00 2.24 · high 30.20 · high 28.00 · good poor
Sun 00:00 2.24 · high 29.20 · high 28.00 · good poor
Sun 01:00 2.24 · high 29.40 · high 28.00 · good poor
Sun 02:00 2.22 · high 29.00 · high 28.00 · good poor
Sun 03:00 2.22 · high 27.00 · high 28.00 · good poor
Sun 04:00 2.20 · high 27.00 · high 28.00 · good poor
Sun 05:00 2.18 · high 26.70 · high 28.00 · good poor
Sun 06:00 2.16 · high 25.50 · high 28.00 · good poor
Sun 07:00 2.16 · high 25.50 · high 28.00 · good poor
Sun 08:00 2.14 · high 25.90 · high 28.00 · good poor
Sun 09:00 2.14 · high 26.70 · high 28.00 · good poor
Sun 10:00 2.12 · high 26.60 · high 28.00 · good poor
Sun 11:00 2.12 · high 27.00 · high 28.00 · good poor
Sun 12:00 2.10 · high 26.20 · high 28.00 · good poor
Sun 13:00 2.10 · high 25.20 · high 28.00 · good poor
Sun 14:00 2.08 · high 25.20 · high 28.00 · good poor
Sun 15:00 2.08 · high 24.00 · high 28.10 · good poor